𝔖 Bobbio Scriptorium
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Behaviour of bubbles in gas—solids fluidized beds: initial formation of bubbles

✍ Scribed by T. Chiba; K. Terashima; H. Kobayashi

Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
574 KB
Volume
27
Category
Article
ISSN
0009-2509

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✦ Synopsis

The successive formation of gas bubbles on the gas distributor of a multi-orifice plate in two-dimensional air-fluidized beds was studied both theoretically and experimentally. A brief theory for the initial bubble formation, which reflects the effects of fluidized particles, was developed based on the assumption that the forming bubbles do not coalesce with the foregoing bubbles until they grow up to a suitable enough size to detach themselves from the spout formed on the orifice. Measurements were made on the change in the size and the position of forming bubbles and bubbles immediately after formation in the two-dimensional fluidized beds consisting of particles of different shapes and dia. A good agreement was found between the theoretical and the experimental results.

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